FIELD: aeronautical engineering transmission systems of aircraft high-life devices. SUBSTANCE: reduction gear of screw hoist of wing high-life devices is provided with torque limiting clutch; to this end, one end of shaft 7 is provided with projection 9 with faces. Rollers 21 are mounted between faces 9 and housing 6 on comb of tail-piece of bush 11 fitted on shaft 7. Bush 11 rim of bevel gear 12 and flange 13 with seats 14 for receiving balls 15 pressed by springs 17 through washer 16 which is connected with shaft 7 by means of sliding key 23. Bevel gear 12 is engageable with bevel gear 26 which is connected with screw of screw hoist by means of joint 27. EFFECT: reduced mass and simplified construction. 4 dwg
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